efibs / mc-lasertag-mod

public class PlayerJoinEventHandler {

    public static void onPlayerJoin(ServerPlayNetworkHandler handler, PacketSender ignoredSender, MinecraftServer server) {

        // Get the player

        ServerPlayerEntity player = handler.getPlayer();

        // Get the game managers

        var gameManager = server.getOverworld().getServerLasertagManager();

        var playerNamesState = gameManager.getSyncedState().getPlayerNamesState();

        var settingsManager = gameManager.getSettingsManager();

        var teamsManager = gameManager.getTeamsManager();

        // Add player to player manager

        playerNamesState.savePlayerUsername(player.getUuid(), player.getLasertagUsername());

        // Sync state to the client

        gameManager.syncStateToClient(player);

        // Send player joined event

        sendPlayerJoinedNetworkEvent(server, player.getUuid(), player.getLasertagUsername());

        // If player is already in a team and game is running (he got disconnected)

        if (teamsManager.isPlayerInTeam(player.getUuid()) &&

            gameManager.isGameRunning()) {

            // Dont teleport him to origin and dont set him to adventure game mode

            return;

        }

        // If origin spawn setting is disabled

        if (!settingsManager.<Boolean>get(SettingDescription.DO_ORIGIN_SPAWN)) {

            // Dont teleport him to origin

            return;

        }

        // Set to adventure game mode

        player.changeGameMode(GameMode.ADVENTURE);

        // Teleport to spawn

        player.requestTeleport(0.5F, 1, 0.5F);

        // Set players spawnpoint

        player.setSpawnPoint(World.OVERWORLD, new BlockPos(0, 1, 0), 0.0F, true, false);

    }

    private static void sendPlayerJoinedNetworkEvent(MinecraftServer server, UUID playerUuid, String playerName) {

        // Create packet byte buffer

        PacketByteBuf buf = new PacketByteBuf(Unpooled.buffer());

        buf.writeUuid(playerUuid);

        buf.writeString(playerName);

        ServerEventSending.sendToEveryone(server, NetworkingConstants.PLAYER_JOINED, buf);